1) Drizzle the steak with vegetable oil and liberally season the steak with salt and pepper, to taste. Let the steak sit at room temperature for 30-60 minutes.

2) Preheat the oven to 200C/180C fan/ gas 6 and heat the grill to hot.

3) In a bowl, mix the garlic, olive oil, and a pinch of salt and pepper. Lay the potatoes on a baking sheet and toss with the garlic-infused oil. Roast the potatoes for 18 minutes, or until golden, turning halfway through. Set the potatoes aside.

4) Place the seasoned steak on the hot grill and grill about three minutes per side for medium rare. Remove the steak from the grill and let rest.

5) To make the dressing, whisk mustard, vinegar, sour cream, and garlic powder. Drizzle in the oil and the bacon fat from the frying pan to emulsify. Whisk in the chopped bacon, onions, and season with salt, and pepper, to taste. Mix everything together with tomatoes, lettuce and cheese and serve.